CN106314343B - A kind of passenger car safety air bag outside car and its control method based on rolling protection - Google Patents

A kind of passenger car safety air bag outside car and its control method based on rolling protection Download PDF

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Publication number
CN106314343B
CN106314343B CN201610817529.1A CN201610817529A CN106314343B CN 106314343 B CN106314343 B CN 106314343B CN 201610817529 A CN201610817529 A CN 201610817529A CN 106314343 B CN106314343 B CN 106314343B
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China
Prior art keywords
air
bag module
rollover
bag
controller
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Expired - Fee Related
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CN201610817529.1A
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CN106314343A (en
Inventor
张学荣
黄硕
黄波
栾丽萍
姜昕
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Jiangsu University
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Jiangsu University
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/13Roll-over protection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002Type of accident
    • B60R2021/0018Roll-over
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01013Means for detecting collision, impending collision or roll-over
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204Actuation parameters of safety arrangents
    • B60R2021/01211Expansion of air bags
    • B60R2021/01231Expansion of air bags control of expansion timing or sequence
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/13Roll-over protection
    • B60R2021/138Roll-over protection using external airbags

Abstract

The present invention provides a kind of passenger car safety air bag outside cars and its control method based on rolling protection, including the first air-bag module, second air-bag module, third air-bag module, 4th air-bag module, obliquity sensor, controller and rollover velocity sensor, first air-bag module and third air-bag module are separately mounted on the collision prevention girders A column of vehicle two sides, second air-bag module and the 4th air-bag module are separately mounted on the collision prevention girders C column of vehicle two sides, the obliquity sensor is mounted on the rigid element of frame mass centre, the rollover velocity sensor is mounted on roof two sides, the controller is connect with obliquity sensor and rollover velocity sensor, the present invention is outer on vehicle to install air-bag module, when turning on one's side, air-bag module is controlled by controller to open It is dynamic, mitigate the injury that body side rebuilds or renovate pairs of occupant.

Description

A kind of passenger car safety air bag outside car and its control method based on rolling protection
Technical field
The present invention relates to a kind of passenger car safety air bag outside cars based on rolling protection, are particularly suitable for passenger car and passively pacify Full technical field.
Background technique
According to the statistical data of NTHSA United States highways management board, rolling is breakneck accident form, than it The collision accident of his type has the higher death rate.In 2010,9,100,000 cars, SUV, pick up and lorry, the hair of rollover accident Raw rate only has 2.1%.But the caused death rate of rollover accident but accounts for the 35% of entire traffic accident.Only 2010 It is 1 year, dead in rollover accident more than there is 7600 people, wherein there is 69% people there is no wear safety belt.
According to 2010 year traffic accident statistics ,-four item number of Crash characteristics according to statistics: generation rollover accident 5440 in 2010 It rises, accounts for sum 2.48%.But death toll 3570, account for the 5.47% of sum.
Domestic in recent years to rise SUV upsurge, the high SUV generation rolling probability of vehicle body center of gravity is bigger, the raising of speed and SUV The increase of occupancy volume domestic rolling probability of happening will be made higher and higher.
Although ratio of the accident in whole traffic accidents caused by automobile overturns is little, the wound of the personnel caused by overturning It dies but quite serious.
Roof strength is for having an important influence the injury of occupant in the rollover of vehicle body.At present both at home and abroad for riding Vehicle roof strength has relevant statutory standard, and the FMVSS 216 in the U.S. and domestic GB 2161314-2012 have roof strength Specific standard.
Relevant criterion both domestic and external can guarantee roof strength, but for roof strength can protect passenger There are no specific conclusions both at home and abroad for safety in roll procedure, therefore the design is strong outside vehicle for the body structure of passenger car It spends higher A and C column installation air bag to be supported vehicle body in vehicle body rolling, protects occupant.
Summary of the invention
In response to the deficiencies in the existing technology, the present invention provides substitutes outside a kind of passenger car vehicle based on rolling protection Capsule and its control method solve to mitigate the injury that body side rebuilds or renovate pairs of occupant.
The present invention achieves the above technical objects by the following technical means.
It is a kind of based on rolling protection passenger car safety air bag outside car, which is characterized in that including the first air-bag module, Second air-bag module, third air-bag module, the 4th air-bag module, obliquity sensor, controller and rollover speed Sensor is spent, first air-bag module and third air-bag module are separately mounted to the collision prevention girders A column of vehicle two sides On, second air-bag module and the 4th air-bag module are separately mounted on the collision prevention girders C column of vehicle two sides, described to incline Angle transducer is mounted on the rigid element of frame mass centre, and the obliquity sensor is for detecting inclination of vehicle angle value;Institute It states rollover velocity sensor and is mounted on roof two sides, the rollover velocity sensor is for detection sensor at a distance from ground Changing value;The obliquity sensor and rollover velocity sensor are connect with controller, and controller is detected according to obliquity sensor Inclination angle value judge inclination of vehicle angle, according to the detection sensor that detects of rollover velocity sensor and ground Distance change value calculates rollover speed, and compares inclination of vehicle angle, rollover speed and preset vehicle rollover speed and incline Rake angle controls the first air-bag module and the second air-bag module or third air-bag module and the 4th substitute The starting of capsule component.
Further, the first air-bag module, the second air-bag module, third air-bag module, the 4th substitute It is triangle cylindricality after the air-bag deployment of capsule component.
It further, further include air bag cover plate, the air bag cover plate is mounted on vehicle two sides collision prevention girders A column and C column.
Further, the air bag cover plate is made of plastics.
Further, rollover velocity sensor quantity is 4, i.e., the first rollover velocity sensor, the second rollover velocity pick-up Device, third rollover velocity sensor and the 4th rollover velocity sensor, the first rollover velocity sensor and third rollover speed Degree sensor is mounted on collision prevention girders A column and the roof junction of vehicle two sides, the second rollover velocity sensor and the 4th side Turn over velocity sensor be mounted on vehicle two sides collision prevention girders C column and roof junction, controller with first turn on one's side velocity sensor, Second rollover velocity sensor, third rollover velocity sensor and the 4th rollover velocity sensor connection, lead to when turning on one's side It crosses controller and controls the first air-bag module and the second air-bag module or third air-bag module and the 4th safety Air bag component boot sequence.
Further, the control method of the passenger car safety air bag outside car based on rolling protection:
S1. the critical angle α of rollover is set in the controller0For the first preset value, with to determine whether reaching vehicle side The condition turned over;Critical speed V when setting vehicle rollover0For the second preset value, with to determine whether reaching the speed of vehicle rollover Condition;The absolute difference △ V of A column and C column critical speed when setting vehicle rollover0For third preset value, for judging vehicle side When turning over A column and C column whether and meanwhile landing condition.
S2. measuring tilt angle by obliquity sensor is α;Pass through the first rollover velocity sensor and third rollover speed Degree sensor measurement goes out the real-time range changing value on A column and ground, and calculating rollover speed by controller is respectively VA1With VA3;The real-time range changing value on C column and ground is measured by the second rollover velocity sensor and the 4th rollover velocity sensor, And calculating rollover speed by controller is respectively VC2And VC4
S3. according to inclination angle alpha, VA1、VA3、VC2And VC4, it is safe that controller controls first according to logical relation below Air bag component and the second air-bag module or third air-bag module and the 4th air-bag module boot sequence:
A. as α > 0, and ︱ α ︱ > α0When,
If VA1> VC2, and VA1> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the first air bag group Part, then the second air-bag module of delayed startup;
If VA1< VC2, and VC2> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the second air bag group Part, then the first air-bag module of delayed startup;
If VA1> V0Or VC2> V0, and ︱ VA1- VC2︱ < △ V0When, then controller starts the second air bag simultaneously Component and the first air-bag module;
B. as α < 0, and ︱ α ︱ > α0When,
If VA3> VC4, and VA3> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air bag group Part, then the 4th air-bag module of delayed startup;
If VA3< VC4, and VC4> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air bag group Part, then the 4th air-bag module of delayed startup;
If VA3> V0Or VC4> V0, and ︱ VA3- VC4︱ < △ V0When, then controller starts third air bag simultaneously Component and the 4th air-bag module.
The beneficial effects of the present invention are:
1. it is of the present invention based on rolling protection passenger car safety air bag outside car, by vehicle mounted angle pass Sensor, rollover velocity sensor and air-bag module, when turning on one's side, by controller according to obliquity sensor and rollover The signal control air-bag module starting of velocity sensor detection, mitigates the injury that body side rebuilds or renovate pairs of occupant.
2. the passenger car safety air bag outside car of the present invention based on rolling protection absorbs when passenger car rolling Roll energy, reduces car body deformation, effectively reduces or hinder rollover accident.The interior original security system of cooperation can effectively reduce Occupant injury of the automobile in roll procedure.
Detailed description of the invention
Fig. 1 is air bag component of the present invention and sensor mounting location distribution map.
Fig. 2 is that effect picture is unfolded when turning on one's side in air bag of the present invention.
Fig. 3 is airbag shape figure of the present invention.
Fig. 4 is air bag cover plate of the present invention in the door pillar location drawing.
In figure:
The rollover velocity sensor of 1- first;The first air-bag module of 2-;The second air-bag module of 3-;4- second turns on one's side Velocity sensor;5- rolls angle transducer;6- door pillar;7- air bag cover plate;8-A column, 9-B column, 10-C column.
Specific embodiment
Present invention will be further explained with reference to the attached drawings and specific examples, but protection scope of the present invention is simultaneously It is without being limited thereto.
As shown in Figure 1, the passenger car safety air bag outside car of the present invention based on rolling protection, including the first substitute Capsule component 2, the second air-bag module 3, third air-bag module, the 4th air-bag module, obliquity sensor 5, control Device and rollover velocity sensor, first air-bag module 2 and third air-bag module are separately mounted to vehicle two sides Collision prevention girders A column 8 on, second air-bag module 3 and the 4th air-bag module are separately mounted to the anticollision of vehicle two sides On beam C column 10, the obliquity sensor 5 is mounted on the rigid element of frame mass centre, and the rollover velocity sensor is mounted on Roof two sides, the obliquity sensor 5 judge vehicle for controller for detecting inclination of vehicle angle value, inclination angle value Tilt angle, i.e. inclined direction, the rollover velocity sensor are used for the distance change value of detection sensor and ground, pass through Controller calculates rollover speed, and the controller is connect with obliquity sensor 5 and rollover velocity sensor, by with controller In preset vehicle rollover speed and tilt angle comparison, carry out logic judgment, the first air-bag module 2 of control is pacified with second Full air bag component 3 or third air-bag module and the 4th air-bag module start.
The course of work: when the moment that passenger car is turned on one's side, the obliquity sensor 5 and rollover velocity pick-up installed on vehicle Simultaneously respectively more than the second preset value and the first preset value, controller starts first simultaneously for device feedback rollover speed and tilt angle Air-bag module 2 and the second air-bag module 3 or third air-bag module and the 4th air-bag module, air bag connect Air bag is in air deflating state when tread surface, and support and energy-absorbing effect are played in automobile roll procedure, reduces vehicle body It deforms and protects occupant.
Shown in Fig. 2 and Fig. 3, the collision of glass and ground, the first air-bag module 2, the are reduced when in order to guarantee rollover Two air-bag modules 3, third air-bag module, the 4th air-bag module air-bag deployment after be triangle cylindricality.
As shown in figure 4, the invention also includes air bag cover plate 7, the air bag cover plate be mounted on vehicle two sides collision prevention girders A column and On C column.When colliding, air bag cover plate 7 can be blown by air bag and be detached from automobile A column and C column.The air bag cover plate 7 Plastic material can be used.
It is 4 that the present invention, which can also be placed on the rollover velocity sensor quantity of roof, combined with Figure 1 and Figure 2, i.e. the first side The rollover of velocity sensor 1, second velocity sensor 4, third rollover velocity sensor and the 4th rollover velocity sensor are turned over, it is described First rollover velocity sensor 1 and third rollover velocity sensor are mounted on collision prevention girders A column and the roof junction of vehicle two sides, The second rollover velocity sensor 4 and the 4th rollover velocity sensor are mounted on collision prevention girders C column and the roof company of vehicle two sides Connect place, controller and the first rollover rollover of velocity sensor 1, second velocity sensor 4, third rollover velocity sensor and the 4th Velocity sensor of turning on one's side connects.
When turning on one's side, controller judges the first air-bag module 2 and the second safety according to following rate-determining steps Air bag component 3 or third air-bag module and the 4th air-bag module boot sequence:
S1. the critical angle α of rollover is set in the controller0For the first preset value, with to determine whether reaching vehicle side The condition turned over;Critical speed V when setting vehicle rollover0For the second preset value, with to determine whether reaching the speed of vehicle rollover Condition;The absolute difference △ V of A column and C column critical speed when setting vehicle rollover0For third preset value, for judging vehicle side When turning over A column and C column whether and meanwhile landing condition.
S2. measuring tilt angle by obliquity sensor 5 is α;Pass through the first rollover velocity sensor 1 and third rollover Velocity sensor measures the real-time range changing value on A column and ground, and calculating rollover speed by controller is respectively VA1 And VA3;Changed by the real-time range that the second rollover velocity sensor 4 and the 4th rollover velocity sensor measure C column and ground Value, and calculating rollover speed by controller is respectively VC2And VC4
S3. according to inclination angle alpha, VA1、VA3、VC2And VC4, it is safe that controller controls first according to logical relation below Air bag component 2 and the second air-bag module 3 or third air-bag module and the 4th air-bag module boot sequence:
A. as α > 0, and ︱ α ︱ > α0When,
If VA1> VC2, and VA1> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the first air bag group Part 2, then the second air-bag module of delayed startup 3.
If VA1< VC2, and VC2> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the second air bag group Part 3, then the first air-bag module of delayed startup 2.
If VA1> V0Or VC2> V0, and ︱ VA1- VC2︱ < △ V0When, then controller starts the second air bag simultaneously Component 3 and the first air-bag module 2.
B. as α < 0, and ︱ α ︱ > α0When,
If VA3> VC4, and VA3> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air bag group Part, then the 4th air-bag module of delayed startup.
If VA3< VC4, and VC4> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air bag group Part, then the 4th air-bag module of delayed startup.
If VA3> V0Or VC4> V0, and ︱ VA3- VC4︱ < △ V0When, then controller starts third air bag simultaneously Component and the 4th air-bag module.
Different vehicle structures is different, and anti-roll capability is different.The condition needs that air bag according to the present invention is opened are examined Consider the rollover speed of body sway angle and automobile.The size of the size of specific tilt angle and rollover speed need to be by not multiplying It is determined with the assessment of the body structure of vehicle and experiment.
The embodiment is a preferred embodiment of the present invention, but present invention is not limited to the embodiments described above, not In the case where substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement Or modification all belongs to the scope of protection of the present invention.

Claims (6)

1. a kind of passenger car safety air bag outside car based on rolling protection, which is characterized in that including the first air-bag module (2), the second air-bag module (3), third air-bag module, the 4th air-bag module, obliquity sensor (5), control Device and rollover velocity sensor, first air-bag module (2) and third air-bag module are separately mounted to vehicle two On the collision prevention girders A column (8) of side, second air-bag module (3) and the 4th air-bag module are separately mounted to vehicle two On side collision prevention girders C column (10), the obliquity sensor (5) is mounted on the rigid element of frame mass centre, the inclination angle sensing Device (5) is for detecting inclination of vehicle angle value;The rollover velocity sensor is mounted on roof two sides, and the rollover speed passes Sensor is used for the distance change value of detection sensor and ground;The obliquity sensor (5) and rollover velocity sensor with control Device connection processed, controller judge inclination of vehicle angle according to the inclination angle value that obliquity sensor (5) detects, according to rollover speed The distance change value of the detection sensor and ground that sensor detects calculates rollover speed, and compares inclination of vehicle angle Degree, rollover speed and preset vehicle rollover speed and tilt angle, control the first air-bag module (2) and the second substitute Capsule component (3) or the starting of third air-bag module and the 4th air-bag module, according to inclination angle alpha, the first rollover speed Spend the rollover speed V of sensor (1)A1, third rollover velocity sensor rollover speed VA3, second rollover velocity sensor (4) Rollover speed VC2With the rollover speed V of the 4th rollover velocity sensorC4, controller controls according to logical relation below First air-bag module (2) and the second air-bag module (3) or third air-bag module and the 4th air bag group Part boot sequence:
A. as α > 0, and ︱ α ︱ > α0When,
If VA1> VC2, and VA1> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the first air-bag module (2), then the second air-bag module of delayed startup (3);
If VA1< VC2, and VC2> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the second air-bag module (3), then the first air-bag module of delayed startup (2);
If VA1> V0Or VC2> V0, and ︱ VA1- VC2︱ < △ V0When, then controller starts the second air-bag module simultaneously (3) and the first air-bag module (2);
B. as α < 0, and ︱ α ︱ > α0When,
If VA3> VC4, and VA3> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air-bag module, so The 4th air-bag module of delayed startup afterwards;
If VA3< VC4, and VC4> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air-bag module, so The 4th air-bag module of delayed startup afterwards;
If VA3> V0Or VC4> V0, and ︱ VA3- VC4︱ < △ V0When, then controller starts third air-bag module simultaneously With the 4th air-bag module.
2. the passenger car safety air bag outside car according to claim 1 based on rolling protection, which is characterized in that the first substitute Capsule component (2), the second air-bag module (3), third air-bag module, the 4th air-bag module air-bag deployment It is afterwards triangle cylindricality.
3. the passenger car safety air bag outside car according to claim 1 based on rolling protection, which is characterized in that further include air bag Cover board (7), the air bag cover plate are mounted on vehicle two sides collision prevention girders A column and C column.
4. the passenger car safety air bag outside car according to claim 3 based on rolling protection, which is characterized in that the airbag cover Plate (7) is made of plastics.
5. the passenger car safety air bag outside car according to claim 1 based on rolling protection, which is characterized in that the rollover speed Spending number of sensors is 4, i.e., the first rollover velocity sensor (1), the second rollover velocity sensor (4), third rollover speed Sensor and the 4th rollover velocity sensor, first rollover velocity sensor (1) and third rollover velocity sensor installation Collision prevention girders A column and roof junction in vehicle two sides, second rollover velocity sensor (4) and the 4th rollover velocity pick-up Device is mounted on collision prevention girders C column and the roof junction of vehicle two sides, controller and the first rollover velocity sensor (1), second side Velocity sensor (4), third rollover velocity sensor and the 4th rollover velocity sensor connection are turned over, passes through control when turning on one's side Device processed controls the first air-bag module (2) and the second air-bag module (3) or third air bag according to logic judgment Component and the 4th air-bag module boot sequence.
6. the control method of the passenger car safety air bag outside car based on rolling protection, which comprises the following steps:
S1. the critical angle α of rollover is set in the controller0For the first preset value, with to determine whether reaching the item of vehicle rollover Part;Critical speed V when setting vehicle rollover0For the second preset value, with to determine whether reaching the velocity conditions of vehicle rollover;If Determine the absolute difference △ V of A column and C column critical speed when vehicle rollover0For third preset value, A column when for judging vehicle rollover The condition whether landed simultaneously with C column;
S2. measuring tilt angle by obliquity sensor (5) is α;Pass through the first rollover velocity sensor (1) and third rollover Velocity sensor measures the real-time range changing value on A column and ground, and calculating rollover speed by controller is respectively VA1 And VA3;Become by the real-time range that the second rollover velocity sensor (4) and the 4th rollover velocity sensor measure C column and ground Change value, and calculating rollover speed by controller is respectively VC2And VC4
S3. according to inclination angle alpha, VA1、VA3、VC2And VC4, controller controls the first air bag according to logical relation below Component (2) and the second air-bag module (3) or third air-bag module and the 4th air-bag module boot sequence:
A. as α > 0, and ︱ α ︱ > α0When,
If VA1> VC2, and VA1> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the first air-bag module (2), then the second air-bag module of delayed startup (3);
If VA1< VC2, and VC2> V0, and ︱ VA1- VC2︱ > △ V0When, then controller first starts the second air-bag module (3), then the first air-bag module of delayed startup (2);
If VA1> V0Or VC2> V0, and ︱ VA1- VC2︱ < △ V0When, then controller starts the second air-bag module simultaneously (3) and the first air-bag module (2);
B. as α < 0, and ︱ α ︱ > α0When,
If VA3> VC4, and VA3> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air-bag module, so The 4th air-bag module of delayed startup afterwards;
If VA3< VC4, and VC4> V0, and ︱ VA3- VC4︱ > △ V0When, then controller first starts third air-bag module, so The 4th air-bag module of delayed startup afterwards;
If VA3> V0Or VC4> V0, and ︱ VA3- VC4︱ < △ V0When, then controller starts third air-bag module simultaneously With the 4th air-bag module.
CN201610817529.1A 2016-09-12 2016-09-12 A kind of passenger car safety air bag outside car and its control method based on rolling protection Expired - Fee Related CN106314343B (en)

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CN109515368B (en) * 2018-10-29 2021-06-01 淮阴工学院 Side-turning buffering device of tank truck and control method thereof
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